Frog are you dual booting windows? I do see that you mentioned having a windows disk... but it doesn't mention your intention with it (keep and dual boot, trash and use for storage, sell it at an auction...etc).
The only question i have is if you wanted to have a partition for data sharing... otherwise it's how you want to set it up. Make sure the system and home are at or above the recommended sizes (which they are) and that's it. There really is no wrong way.

